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6.1
Calibration
CAUTION!
–
The gradient must be calibrated
after every manipulation on the
sensor (e.g. electrolyte replace‐
ment, emery treatment, etc)!
–
The gradient has to be re-cali‐
brated at regular intervals to
ensure the perfect operation of
the sensor ! If there are no other
regulations then the sensor only
needs to be calibrated every 3-4
weeks for use in drinking water
and swimming pool water.
–
Avoid air bubbles in the sample
water! Air bubbles, which adhere
to the sensor can result in too low
a reading and thus lead to dan‐
gerous over-metering.
–
Please note the pertinent national
guidelines for calibration inter‐
vals!
Prerequisites
The sensor is ready (wait for run-
–
in time).
Constant flow rate at the flow
–
gauge
Constant temperature of the
–
sample water
Each time after either installing or
–
removing the sensor, wait until
the run-in time expires and a con‐
stant reading is achieved, but at
least 15 minutes to avoid drifts
caused by the temperature equal‐
isation.
No concentration fluctuations of
–
the feed chemical in the sample
water
Constant pH value within the per‐
–
missible range
The sample must be taken at the
–
place the sensor is installed
Commissioning
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